Grade 10 English Unit 5 Science and Experiment || Yes, You Can
Boil Water at Room Temperature
Yes, You Can Boil Water at Room Temperature
A. Find the words from the text that have the following meanings.
a. the height of an object or point in relation to sea level or ground level- altitude
b. a group of atoms bonded together- molecule
c. a state in which opposing forces are balanced - equilibrium
d. to change from a gas or vapour to a liquid - condense
e. a piece of unreliable information that is repeated so often that it is accepted as the fact- factiod
f. a space or container from which the air has been removed - vacuum
g. a device that is used to remove blockages from the drain of a basin or tub - plunger
B. Complete the sentences with the correct words or phrases from the text.
a. Water bubbles breakdown if vapour pressure inside and outside the bubbles is equal.
b. As the altitude goes up, the boiling point of water decreases
c. Random motion of molecules or particles is called thermal motion
d. If the door does not open, try jiggling the key in the lock.
e. Certain chemicals can induce undesirable changes in the nervous system.
C. Answer these questions.
a. What is the speed of the water particles compared with?
The speed of water particles is compared with the temperature of the water.
b. How are bubbles formed in the boiling water?
Bubbles are formed in the boiling water due to the vaporization of water particles that become trapped in small pockets of air.
c. Mention two things on which external pressure depends.
External pressure depends on the mass of the atmosphere and depth, density and the gravitational field.
d. How is the atmosphere related to the pressure of water?
The atmospheric pressure affects the pressure of water by applying a force on the surface of the water.
e. What would happen if the atmospheric pressure on the liquid water was decreased?
If the atmospheric pressure on the liquid water was decreased, the boiling point of water would decrease, causing it to boil at a lower temperature.
f. What would the experimenter gain if s/he pulled the plunger out?
If the experimenter pulled the plunger out, it would create a vacuum in the container, causing the water to boil at a lower temperature due to the decrease in pressure.
D. What would happen on the Earth if there were no gravity? Discuss possibilites with your friends.
If there were no gravity on Earth, everything that is currently held down by gravity would float off into space. This would include all living things, buildings, vehicles, and even the oceans. The Earth would essentially be a massive floating ball of matter in space, with nothing holding it together.
The lack of gravity would have a significant impact on the human body. Without gravity, bones and muscles would not need to work as hard to support the body's weight, leading to loss of bone density and muscle atrophy. In addition, blood would not be able to flow properly without gravity, which could lead to cardiovascular problems.
The lack of gravity would also affect the Earth's atmosphere. Without gravity to hold it in place, the atmosphere would gradually escape into space. This would make it impossible for humans and other living things to survive without artificial means of generating air and other resources.
Finally, without gravity, the Earth's orbit around the Sun would be affected, potentially leading to a catastrophic collision with another planet or celestial body.
If there were no gravity on Earth, the consequences would be severe and wide-ranging. The lack of gravity would affect all aspects of life on Earth, from human health to the environment and beyond.
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